i -- environment for something like this to happen. i know they do due diligence but it's virtually impossible to catch something like this. as a former member of homeland security x are aware and were aware of different types of efforts not only in massachusetts but throughout the country. we are constantly being poked and prodded and i want to commend our homeland security and law enforcement personnel for what they do to keep us safe. that's why it's so critically important to provide them with the tools and resources to do just that. so these types of things don't happen again. jenna: senator brown we appreciate your time today so much. thank you, sir. >> thank you. jon: well police are searching an apartment in the boston suburbs. its connection to the man under guard at a boston hospital. what it might reveal in connection with the bombings at the boston marathon. we'll take a look at that, plus, so much dramatic and emotional video of the horrific scenes erupting in boston. we'll talk to the eyewitnesses who shot these images, s